<template>
  <div>
    <div class="clock-container" style="margin-top: 80px">
      <div class="clock">
        <div class="needle hour"></div>
        <div class="needle minute"></div>
        <div class="needle second"></div>
        <div class="center-point"></div>
      </div>

      <div class="time"></div>
      <div class="date"></div>
    </div>
  </div>
</template>

<script>

export default {
  name: "Clock",

  created() {
    let timer = setInterval(() => {
      this.setTime()
    }, 1000)
  },

  methods: {

    setTime() {
      // const time = new Date();
      // const month = time.getMonth()
      // const day = time.getDay()
      // const date = time.getDate()
      // const hours = time.getHours()
      // const hoursForClock = hours >= 13 ? hours % 12 : hours;
      // const minutes = time.getMinutes()
      // const seconds = time.getSeconds()
      // const ampm = hours >= 12 ? '下午' : '上午'
      //
      // const scale = (num, in_min, in_max, out_min, out_max) => {
      //   return (num - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
      // }
      //
      // this.hourEl.style.transform = `translate(-50%, -100%) rotate(${scale(hoursForClock, 0, 12, 0, 360)}deg)`
      // this.minuteEl.style.transform = `translate(-50%, -100%) rotate(${scale(minutes, 0, 60, 0, 360)}deg)`
      // this.secondEl.style.transform = `translate(-50%, -100%) rotate(${scale(seconds, 0, 60, 0, 360)}deg)`
      //
      // this.timeEl.innerHTML = `${hoursForClock}:${minutes < 10 ? `0${minutes}` : minutes} ${ampm}`
      // this.dateEl.innerHTML = `${days[day]}, ${months[month]} <span class="circle">${date}</span>`},
      const hourEl = document.querySelector('.hour')
      const minuteEl = document.querySelector('.minute')
      const secondEl = document.querySelector('.second')
      const timeEl = document.querySelector('.time')
      const dateEl = document.querySelector('.date')

      const days = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
      const months = ["一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月"];


      const time = new Date();
      const month = time.getMonth()
      const day = time.getDay()
      const date = time.getDate()
      const hours = time.getHours()
      const hoursForClock = hours >= 13 ? hours % 12 : hours;
      const minutes = time.getMinutes()
      const seconds = time.getSeconds()
      const ampm = hours >= 12 ? '下午' : '上午'
      const scale = (num, in_min, in_max, out_min, out_max) => {
        return (num - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
      }

      hourEl.style.transform = `translate(-50%, -100%) rotate(${scale(hoursForClock, 0, 12, 0, 360)}deg)`
      minuteEl.style.transform = `translate(-50%, -100%) rotate(${scale(minutes, 0, 60, 0, 360)}deg)`
      secondEl.style.transform = `translate(-50%, -100%) rotate(${scale(seconds, 0, 60, 0, 360)}deg)`

      timeEl.innerHTML = `${hoursForClock}:${minutes < 10 ? `0${minutes}` : minutes} ${ampm}`
      dateEl.innerHTML = `${days[day]}, ${months[month]} <span class="circle">${date}</span>`

    }
  }
}
</script>

<style scoped>

* {
  box-sizing: border-box;
}

:root {
  --primary-color: #000;
  --secondary-color: #fff;
}

html {
  transition: all 0.5s ease-in;
}

html.dark {
  --primary-color: #fff;
  --secondary-color: #333;
}

html.dark {
  background-color: #111;
  color: var(--primary-color);
}

body {
  font-family: 'Heebo', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
}

.toggle {
  cursor: pointer;
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border: 0;
  border-radius: 4px;
  padding: 8px 12px;
  position: absolute;
  top: 100px;
}

.toggle:focus {
  outline: none;
}

.clock-container {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.clock {
  position: relative;
  width: 200px;
  height: 200px;
}

.needle {
  background-color: var(--primary-color);
  position: absolute;
  top: 50%;
  left: 50%;
  height: 65px;
  width: 3px;
  transform-origin: bottom center;
  transition: all 0.5s ease-in;
}

.needle.hour {
  transform: translate(-50%, -100%) rotate(0deg);
}

.needle.minute {
  transform: translate(-50%, -100%) rotate(0deg);
  height: 100px;
}

.needle.second {
  transform: translate(-50%, -100%) rotate(0deg);
  height: 100px;
  background-color: #e74c3c;
}

.center-point {
  background-color: #e74c3c;
  width: 10px;
  height: 10px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.center-point::after {
  content: '';
  background-color: var(--primary-color);
  width: 5px;
  height: 5px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.time {
  font-size: 60px;
}

.date {
  color: #aaa;
  font-size: 14px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.date .circle {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border-radius: 50%;
  height: 18px;
  width: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 18px;
  transition: all 0.5s ease-in;
  font-size: 12px;
}

</style>